74LVC2G125GD,125 Equivalent & Substitute Parts

Part Overview

The 74LVC2G125GD,125 is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., featuring 2 elements with 1 bit per element and 3-state output capability. This component operates across a supply voltage range of 1.65V to 5.5V and is housed in an 8-XSON (2x3) surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC2G125GD,125
Manufacturer	Nexperia USA Inc.
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	8-XFDFN
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC2G125GD,125 is determined by the following critical parameters:

Electrical Compatibility Parameters:

Logic Type: Buffer, Non-Inverting
Output Type: 3-State
Current - Output High, Low: 32mA, 32mA
Voltage - Supply: 1.65V ~ 5.5V
Operating Temperature: -40°C ~ 125°C (TA)

Mechanical Compatibility Parameters:

Mounting Type: Surface Mount
Package / Case: 8-XFDFN (or equivalent footprint)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Package Equivalent (Same Element Count): The 74LVC2G125DC,125 maintains identical electrical specifications and 2-element configuration in an alternative 8-VFSOP package, providing direct functional replacement with different PCB footprint requirements.
Parametric Equivalents (Single Element Alternatives): Parts with base numbers 74LVC1G125 and 74LVC1G126 provide equivalent electrical performance but with 1 element instead of 2. These require circuit design consideration for dual-buffer applications and are available in multiple package variants (6-XSON, SOT886, SOT1202, SOT891).

Parameter Comparison

Parameter	74LVC2G125GD,125	74LVC2G125DC,125	74LVC1G125GF,132	74LVC1G125GM,115	74LVC1G125GM,132	74LVC1G125GM-Q100X	74LVC1G125GN,132	74LVC1G125GS,132	74LVC1G126GM,115	74LVC1G126GM,132	74LVC1G126GN,132
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	2	2	1	1	1	1	1	1	1	1	1
Output Type	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Package / Case	8-XFDFN	8-VFSOP	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN	6-XFDFN
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Same Element Count):

The 74LVC2G125DC,125 is the primary substitute for the obsolete 74LVC2G125GD,125. Both parts maintain identical electrical specifications, 2-element configuration, and active product status. The substitution requires PCB layout modification due to package change from 8-XSON (2x3) to 8-VFSOP (0.091", 2.30mm Width). This part is actively manufactured and maintains full ROHS3 compliance and MSL 1 rating.

For Single-Element Applications:

When circuit design permits use of single-element buffers, the following active parts provide equivalent electrical performance:

74LVC1G125GM,115 and 74LVC1G125GM,132: Available in Tape & Reel packaging with 6-XSON SOT886 (1.45x1) package
74LVC1G125GM-Q100X: Automotive-qualified variant with AEC-Q100 certification, suitable for automotive applications
74LVC1G125GN,132: 6-XSON (0.9x1) package variant
74LVC1G125GS,132: 6-XSON SOT1202 (1x1) package variant
74LVC1G126GM,115 and 74LVC1G126GM,132: Functionally equivalent with alternative package options
74LVC1G126GN,132: 6-XSON (0.9x1) package variant

All single-element alternatives maintain the same electrical specifications (32mA output current, 1.65V–5.5V supply, -40°C to 125°C operating range) and compliance certifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC2G125DC,125 directly replace the 74LVC2G125GD,125?

A: Yes. Both parts are non-inverting buffers with 2 elements, 3-state output, identical electrical specifications (32mA output current, 1.65V–5.5V supply voltage, -40°C to 125°C operating temperature), and equivalent compliance ratings. The primary difference is the package: 8-XSON (2x3) versus 8-VFSOP. PCB layout modification is required.

Q: What is the difference between 74LVC1G125 and 74LVC1G126 series parts?

A: Both series provide non-inverting buffer functionality with 3-state output and identical electrical specifications. The distinction lies in the base product number designation; both are functionally equivalent for single-element buffer applications. Selection between them depends on availability and packaging requirements.

Q: Can I use two 74LVC1G125 parts to replace one 74LVC2G125?

A: Yes, from an electrical standpoint. Two single-element buffers can provide the functionality of one dual-element buffer. However, this requires circuit redesign, additional PCB space, and increased component count. The 74LVC2G125DC,125 is the preferred direct replacement when dual-element functionality is required.

Q: What does the suffix in part numbers like "GM,115" or "GM,132" indicate?

A: These suffixes represent different manufacturing date codes or packaging variants within the same base part number. Both 74LVC1G125GM,115 and 74LVC1G125GM,132 are functionally identical and interchangeable from an electrical and mechanical standpoint.

Q: Is the 74LVC1G125GM-Q100X suitable for automotive applications?

A: Yes. The 74LVC1G125GM-Q100X carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications. It maintains all standard electrical specifications and ROHS3 compliance.

Q: What packaging options are available for single-element alternatives?

A: Single-element 74LVC1G125 and 74LVC1G126 parts are available in multiple 6-XFDFN package variants: SOT886 (1.45x1), SOT891 (1x1), SOT1202 (1x1), and SOT (0.9x1). Package selection depends on PCB layout constraints and assembly equipment capabilities.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original 74LVC2G125GD,125 specifications.

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